diff options
| -rw-r--r-- | src/com/android/launcher3/AppsCustomizePagedView.java | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/com/android/launcher3/AppsCustomizePagedView.java b/src/com/android/launcher3/AppsCustomizePagedView.java index 882cd9dc4..7e67f7c60 100644 --- a/src/com/android/launcher3/AppsCustomizePagedView.java +++ b/src/com/android/launcher3/AppsCustomizePagedView.java @@ -233,6 +233,8 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen // Relating to the scroll and overscroll effects private static float TRANSITION_MAX_ROTATION = 22; private static final float ALPHA_CUTOFF_THRESHOLD = 0.01f; + private boolean mOverscrollTransformsSet; + private float mLastOverscrollPivotX; public static boolean DISABLE_ALL_APPS = false; @@ -1487,15 +1489,42 @@ public class AppsCustomizePagedView extends PagedViewWithDraggableItems implemen if (isInOverscroll) { int index = 0; + float pivotX = 0f; + final float leftBiasedPivot = 0.35f; + final float rightBiasedPivot = 0.65f; final int lowerIndex = 0; final int upperIndex = getChildCount() - 1; final boolean isLeftPage = mOverScrollX < 0; index = (!isRtl && isLeftPage) || (isRtl && !isLeftPage) ? lowerIndex : upperIndex; + pivotX = isLeftPage ? rightBiasedPivot : leftBiasedPivot; + View v = getPageAt(index); + + if (!mOverscrollTransformsSet || Float.compare(mLastOverscrollPivotX, pivotX) != 0) { + mOverscrollTransformsSet = true; + mLastOverscrollPivotX = pivotX; + v.setCameraDistance(mDensity * mCameraDistance); + v.setPivotX(v.getMeasuredWidth() * pivotX); + } + float scrollProgress = getScrollProgress(screenCenter, v, index); float rotation = -TRANSITION_MAX_ROTATION * scrollProgress; v.setRotationY(rotation); + } else { + if (mOverscrollTransformsSet) { + mOverscrollTransformsSet = false; + View v0 = getPageAt(0); + View v1 = getPageAt(getChildCount() - 1); + v0.setRotationY(0); + v1.setRotationY(0); + v0.setCameraDistance(mDensity * mCameraDistance); + v1.setCameraDistance(mDensity * mCameraDistance); + v0.setPivotX(v0.getMeasuredWidth() / 2); + v1.setPivotX(v1.getMeasuredWidth() / 2); + v0.setPivotY(v0.getMeasuredHeight() / 2); + v1.setPivotY(v1.getMeasuredHeight() / 2); + } } } |